The structure of the atomic helium trimers: halos and Efimov states

摘要: The Faddeev equations for the atomic helium-trimer systems are solved numerically with high accuracy both most sophisticated realistic potentials available and simple phenomenological potentials. An efficient numerical procedure is described. large-distance asymptotic behaviour, crucial weakly bound three-body systems, described almost analytically arbitrary Efimov effect especially considered. geometric structures of states quantitatively investigated. schematic models previous computations comparable, i.e. within 20% spatially extended 40% smaller -trimer ground state.